Sulfuric-acid chamber.



1'. HARRIS & D. H. THOMAS.

SU-LFURIC ACID CHAMBER.

APPLICATION FILED MAR. 27, 19x6.

Patented Nev. T, 1916.

3 SHEETSSHEET l- J- HARRIS & D. H. THOMAS.

SULFURIC ACID CHAMBER.

APPLICATION FILED MAR. 21. I916.

Patented Nov. 7; 1916.

3 5HEETSSHEET 2.

' mmm Patented Nov. 7, 1916.

3 SHEETSSHEET 3- outrun .sra'ras Parana caries.

JOHN HARRIS, OF SHEFFIELD, ENGLAND, AND DAVID HI BBERT THOMAS, OF MORRISTON, WALES.

SULFURIC-ACID CHAMBER.

' lurgist, and DAVID HIBBERT THOMAS, chemist, subjects of the King of England, residing, respectively, at Shefiield, in England, and at Morriston, in WVales, have .invented certain new and useful Improvements in or Relating to Sulfuric-Acid Chambers; and we declare the following to be a full, clear, and exact description of the same.

This invention relates to sulfuric acid chambers, its object being to provide improvements in the construction of the frame or structure supporting it and in the means for attaching the chamber curtain thereto, these means being such that they are easily accessible for repairs without risk of damage to the chamber.

In the accompanying drawings :Figure 1 is an elevation of a sulfuric acid chamber and its surrounding frame or structure, according to this invention. Fig. 2 is a plan of Fig. 1. Fig. 3 is an enlarged elevation showing means for attaching the curtain to the frame. Fig. 4 is a similar view to Fig. 3 showing a modification. Fig. 5 is a plan of Fig. 4. Fig. 6 is an enlarged sectional elevation of an upper corner of the chamber. and frame shown in Figs. 1 and 2.

Like reference figures indicate like parts throughout the drawings.

The frame or structure which surrounds and supports the leaden chamber comprises vertical pillars or girders l and horizontal girders 2 suitably bolted or riveted together and, if necessary, strengthened by stays, tie rods or the like. The curtain 3 is suspended from the girders 2 being attached thereto at the desired number of oints. For each point of attachment a hoo 4; (Figs. 3,4 and 5) is pivoted to the curtain 3, conveniently by a strip of lead '5 which is burnt to the curtain in the usual manner, the hook being preferably but not necessarily U-shaped as shown in Fig. 5. Each of thehooks'at is caused to engage one of the girders 2 or a part carried thereby. In the preferred construction a second hook-like member 6 en-' gages the girder 2 while the hook 4. engages the member 6. In order to prevent the curtain 3 from coming -intocontact with the frame a block or the like 7 is forced between the curtain and the frame at each point of attachment, the block being in compression and serving if desired to lock the hook 4 and Specification of Letters mm.

Patented Nov. 7, 1916.

Application filed March 27, 1916. Serial No. 86,999. i

the member 6 to the girder as well as toinsure the hook 4 taking its share of the weight of the curtain 3. In order thus to lock. the

parts together one end of the blockis shaped to fit the space between the lower rail of the member 6 and the horizontal webof the girder, this 'end of the block being first placed in position as shown in chain lines n Fig. 4 and the block being then forced hltO a horizontal position. When the member 6is not used the block? would be situated. between the horizontal web of the girder and a horizontal bar on, or other convenient part of, the hook 4. With this attachment it will be seen that if a rent or tear should appear in the curtain adjacent to a point of attachment (which is the place weight on the other points of attachment which often led to further damage to the: curtain. With means of attachment accordwhere rents usually do occur first) it will be easily accessible for repair and it will be ing to this invention, however, such risk is avoided. In addition to their other functions the, blocks 7 hold the curtain 3away from contact with "the metal structure and thus also permit air to circulate about the exterior surface of the curtairT.

The upper ends of the curtain may he sattached to one of the girders 2 by any known means such as by bolts and nuts as indicated at 8 in Fig. 6, although the special means hereinbefore described and illustrated in Figs. 3, land 5 may be employed here also if desired. I

The edges of the roof 9 are :burnt to the upper portions of the curtain as usual, and

the roof is suspended from bars 10 by hooks 11 pivoted to the roof in a manner similar to that employed for connecting the hooks 4 to the curtain. These bars or rodslO from which the roof 9 of the chamber is suspended are radially arranged betweena central ring or disk 12 and a suitable part of the. frame or structure such-as the vertical pillars 1. If desired the outer ends er these radial bars may be attached to anou'ter ring suitably supported t re frame or structure. the constructor: illustrated the redial bars are in conipre ion; they may however be sion, or some may be is a to be e r; others in compression radial on bars 13 also shown. in l 6. Some the bars 10 and 13 how been onT'ttefl from l the sake of clear e aberturc w lid 1 I: be utiuzeo to to .e a pipe or ilue 14: 10E

Le passage of leaving entering) P re chcmbeiz. Although this form of construction comprising the radial roof rods is most app lcable to a cylindrical chamber. it may be used for sou; and other rectangular chambers.

nage apertures are made in the part curtain Which projects above the l'\ of 9 and thus the domeor arch-like form roof will be effective in preventing Water from remaining on the roof and from adding unnecessary Weight to be sup" ported in cases Where the roof 9 is not covered in.

25 c roof 9 and the Whole or a part of the cr may he Water-cooled, and the water therefrom may be led to theGlover tower coolers and be utilized there,

lVhat'we claim and desire to secure by Letso ters Patent is in e structure for supporting a sulfuric acid chamber the combination with pillars arou the chamber, of a central member al she chamber roof supported from the said pillars by radial. bars, substantially as fort/hp In a structure for supporting a sulfuric acid chamber the comb?) ation with pillars arou tl chamber, of a cent al member @he chamber roof supper .1 from the 'llars by radial. tension burs substao the c0 chamber or a central member .iber roof supported. "from the ial compression bars, sul

tin a sulfuric combination with pillars 1 cha iber, c chamber roof supported from the oi. central member.

said pillars by radial bars some of Whic in tension and some in compression subs tially as forth. ii:

5. in a structure for supporting a col ric acid chamber the combination aw lars around the chambe, of a centi her above the chamber roof supported the said pillars oy radial bars some of are intensiou sncl some in coinprecf ing through the central borl as set forth.

6. in a structure for supportin a su acid chamber the combination with. p11 around the chamber of a central men above the chamber roof, supported from said. pillars by redial bars and a rio ta stresses transmitted bythe radial bars i stantially as set forth.

7, The combination with the roof and cu"'- tein of a sulfuric acid chamber, of i porting frame comprising a series of pilla arranged around the chamber and means connecting said pillars, means for suspending the roof of the chamber from said 1 "one a series of books each pivotally connected to the chamber curtain and engaging said? frame, and a block in compression bem'e o said curtain and frame adjacent each of hooks.

8. The col'nbination With the roof and curing saici pillars, means for susp 11 L J3 fi. .w i l 7 111g Lllfi rooi or (he chamber from said name and. means for connecting the chamber Q tain and frame comprising a series of llOGKS pivotally attached to the curtain and en ing the frame, and blocks in compression b invccn the curtain and frame and each ii to l I one of the hooks to ihe frame.

JP testimony whereof we have signed on" rim-es to this specification in the pres l UK Giuiuzinvoon,

' ,mnzcia Ivy MAY.

renames Jon's Mouser-r oam V'Jnlcoxo 

